in rhinebeck, new york, saturday, chelsea clinton married her long-time boyfriend marc mezvinsky. the bride was walked down the aisle by her proud father, the former president. the ceremony took place at sunset. it was conducted by a rabbi and a minister. hundreds of guests including celebrities from entertainment and politics joined the clintons for the festivities. ♪ ♪ >> chris: in america's news headquarters, the campaign for the midterm intensifies, we are going to talk with some top republicans. in a few minutes we sit down with the g.o.p. leaders in the house and senate for their first joint interview ever. but this month we're also going to talk with republicans who are being mentioned as prime contenders for the 2012 presidential nomination. we begin with perhaps the g.o.p.'s most intriguing figure. former vice presidential candidate sarah palin, who joined us earlier from alaska. governor palin, welcome back to "fox news sunday." >> thank you, chris. glad to get to be with you. >> chris: president obama now says the choice for november is between the party of bush tha